First test BFN! Then......

Just wanna tell my story for u ladies. So i had my last period on Sept 3rd. Normal. Then October came around and my app said I was due to start but I didn’t which can be normal. I got my period acne as usual but i went to store got a test that day and took it. Negative. I said oh well. Went on a week maybe two and period never showed. Someone on here said test again. Mind you this would be my 3rd pregnancy. First two test on the first day of missed period test lit up with BFP! I said ill test again but first was negative so no way. Plus ive been very late on my period before. Nothing new. Went got the digital from wali. Box of two for $4.95!!!!!!! Went home took test. PREGNANT!!! I was like what the what!! Took the other in morning. PREGNANT!! Made my 8 week apt and go in for sono. She said based of last period (which i know for SURE) Your 8 weeks but baby is 6.5. Well I’ll be!?!?!? Went to my last apt 12 wks baby is measuring at 13 weeks! Healthy as can be! And here I am. Pregnant. Baby number 3. Everything about this pregnancy is different. So ladies dont let a negative sadden you the first time my period has been perfect for a year so who would have thought id ovulated late or so they think/thought. I swore after that negative theres no way n im wasting $5 lol