Please help...i can’t believe it....

Let me start by saying i am in a 3 year relationship with the man i want to marry. We just moved into our second apartment together in July, we have a puppy that just turned a year, and we graduated from the same 4 year school together in may. we are 21&22 He landed an amazing job & i have been working a part time job for now. We talk about marriage and children a lot and agree that in 3-5 years time we would actively try. In September i was on the pill but after getting a bug & throwing up for a few days...i found out it failed and was pregnant. I was shocked and panicked and told my boyfriend via text(worst ever i know).......as soon as he got home he told me abortion was the only option and that i would ruin his life if i had the baby and that he refuses to be a dad and it would ruin our relationship....my heart sank. i was shocked and confused and scared and happy and sad and didn’t know what i wanted but hearing him say that made me feel like i definitely didn’t want any of that. his family sent me massages saying we aren’t in the right place to have a baby and that this would ruin him and that an abortion is not a big deal.. “better to nip it in the bud now” my boyfriend agreed with them and made me feel so alone and more scared. I stressed myself out so much that i did not sleep for 3 days and was constantly vomiting.

I started bleeding 4 days later & went to the doctor and was told i was having a chemical pregnancy. My boyfriend seemed happy so i tried to just pretend it didn’t happen and we went back to normal. we didn’t really get intimate because i felt i needed some time..so we only had sex once...well

Last week i realized i hadnt gotten a period since my “miscarriage” about 6 weeks ago so i took a test...blazing positive. i went to the hospital and had an ultrasound that only showed a thickened lining, hcg levels 52...there’s a couple of explanations..

1. i didn’t miscarry and was just extremely early/somehow it stayed

2.i was originally pregnant with twins and lost one...

3. the one single time that we had sex happened to be the magical time of the month and this is a new pregnancy. all 3 of which would be complete miracles....after going through what i did in september and realizing how meant to be this seems I am absolutely positive that i would want to keep this baby....how do i tell him?...do i wait until there is a very unmistakeable ultrasound? write a letter from unborn baby’s perspective?

after his last reaction i feel like i can’t even fathom telling him this is somehow happening only a month later...