Could i be pergnant ?

okay so me and my boyfriend are ttc (its been about 7months now) and i think i could be pregnant. ive used ovulation tests for the first time now also a bbt for the first time they've worked very well i deteced my LH surge May 5th and it is now April 24th and i am two days late. about a week ago i was experiencing intense dizziness and felt a bit sick and tenderness thats about it. my temp is staying around 36.95 & 37.05 today is the 19th dpo and it hasnt showed any going down but its staying around there and ive seen that not all women their temp goes up constantly after conception. could i be pregnant ? :)