Your lagna is Vrischika.
Seventh house stands for marriage.
There are three planets in seventh house.
Kuja,Sukra and Budha are in seventh house.
There is mangal dosha.
Sani is very bad planet for your lagna
Sani is in 5th house and Sani is looking
There is Sani dosha also in horoscope. firstname.lastname@example.org
Looking at your horoscope we see that Yes there is Mangal dosha in your horoscope. Your ascendant is Scorpio and your rashi is Pisces. 7th house is ruled by Venus. As Venus is posited in the 7th house , and does not get cancelled, you do have mangal dosha. Getting married with mangalik or someone who cancelled your mangal dosha is important.