I need help, might be pregnant

So... I had a lot of unprotected sex with pull out even during my ovulation time. The women family and even I have fertility issues where we can’t get pregnant easily. I had my full period on time, with my lining shredding, all my symptoms, my usual period acne etc... I have no symptoms of being pregnant as of yet and I didn’t had sex since my last period which was a week ago. I have Endo with makes pregnancy 2 times more difficult for me but anyway... my question is:

Can I still be pregnant even if I just had my period (period 100% not spotting)? And

Should I take a pregnancy test?

A lot of women says that they had normal period when they were pregnant. Mainly when your baby doesn’t grow in your uterus. I need to know ASAP because I might need medical help so I don’t have a miscarriage cause that’s quite common in my family.

My boyfriend and I are serious. I don’t want to be pregnant though cause I’m not ready to be a mom yet but if it happens I will welcome the baby with absolute love.

I asked this question and did not do the test yet because I might be overthinking it again cause I had my period and have no pregnancy symptoms what so ever. I really need to be less anxious as a person and stop overthinking everything. That’s why I want to know, am I overthinking or should I do the test?

EDIT: I cannot get on bc cause it will feed my endo. plus I drink primolut n and can’t take bc with it or I’ll end up in ER

I can’t use condom either, I get rashes with all types of condom.

I am not trying to avoid getting pregnant. I would LOVE a kid but I have health issues and it worries me