Pregnant One Night Stand! Told me to get an abortion

So I recently found out I am pregnant from a one night stand.

This happened after I broke up with my partner of 4 years, and I just wanted to get back out there. I have a daughter and this will be my fourth pregnancy. I’ve had two miscarriages one at 21 weeks and one at 13 weeks.

I’m really worried this pregnancy will end the same so I’m thinking of not telling the father until I’m past the 1st trimester. I know he and I weren’t anything serious, and that he’s dating someone right now. So I feel that waiting to tell him is best, because if something does happen like I miscarry I don’t want to have disrupted his life for no reason.

I know I’m sounding like I’m certain I’ll miscarry but after having two pregnancies not make it even after the 1st trimester I really don’t want to get my hopes up.

Anyway I was wondering if this was a bad idea to hold off on telling the father. I just want to be in the clear somewhat and have it confirmed this is a viable pregnancy. I’m not trying to keep it from him forever, but I feel like telling him now would disrupt his relationship and his life just for it to may not end up in a baby. But I also don’t want him to be angry at the fact I kept it from him. I’m just so confused on what to do in this situation. Thoughts ?

Update: so I went to my doctors and found out I am about 6 weeks along I heard a heartbeat already and everything. The baby looks like a cute little dot but I was so happy.

I went ahead and told him and he told me to get an abortion. His excuse was that he doesn’t want to put me through another pregnancy again, and that he didn’t want a baby right now. Especially with him being in a relationship. I didn’t know what to say or how to take it. But all I told him was I am not having an abortion, but that if he didn’t want to be in the baby’s life considering I make it full term that was fine. I let him know I don’t need him for anything and if that was his choice then I wouldn’t tell anyone he was the father and I wouldn’t come looking for him for child support. I also told him though that once he decided he can’t come looking for my baby years later trying to be a dad.

I don’t think this irrational to say, but honestly I’m relieved to have at least let him know. I’m not going to be worrying about someone who doesn’t want to be in our lives when I should be enjoying this time.

Now just hoping this pregnancy goes safely.