Not sure

I'm 18 and I've been trying to concieve for a while now and recently just been diagnosed with depression and my sex drive and everything has gone but before I was diagnosed me and my partner had sex and ejaculated in me and I have said while I'm dealing with this I don't want to bring a baby up not feeling myself but I've been feeling different AF is due 6th April but my normal signs are different I dunno if it's because of what's going on or I'm pregnant and ino I can't be sure yet just wondering is anyone had any advice?