Pregnant after vasectomy?

I know it’s possible, rare, but possible. I’m somewhat panicking. My husband got a vasectomy in December. Our daughter was born in March. He went back in a gave a sample end March/beginning of April and we were told we had the green light and that there were no more swimmers. So since 6 weeks pp we’ve been active with no protection.

I haven’t had a period or what I would consider a period since she’s been born. Around 5 weeks pp I did have some bleeding (I had stopped pp bleeding around 2 weeks) but I brushed it off cause it was only like 2-3 days not a normal period for me.

Starting in May so around 8 weeks pp I would have random mild spotting on rare occasion. Again just brushed it off (I’m ebf) well starting about 2 weeks ago I had no appetite. I mentioned it to my husband and he pulls the classic “what if you were pregnant” well I had already processed that so that just made me more nervous. Right around that time though I noticed when I would get out of bed my hips were popping and shifting (I get really bad SPD with my pregnancies, started noticing it with my last pregnancy around 8 weeks) again trying to brush it off. Other things have somewhat been occurring though. Increase in cervical mucus (I’m normally very dry from BF) headaches, occasional nausea, somewhat crampy.

I’m really nervous. I don’t want to test. If I am this would be my 5th babe. 😬